public static Chunk generateChunk(Point chunkID)
{
if (chunkID.X == 0 && chunkID.Y == 0)
{
int test = 1;
}
Chunk chunk = new Chunk(chunkID.X, chunkID.Y);
chunk.lastUpdate = 0;
chunk.terrainPopulated = 1;
chunk.structurePopulated = 1;
chunk.inhabitedTime = 0;
byte[] biomes = new byte[256];
for (int i = 0; i < 256; i++)
{
biomes[i] = (byte)i;
}
chunk.biomes = biomes;
byte[] blocks = new byte[256];
for (int i = 0; i < 256; i++)
{
blocks[i] = (byte)0;
}
chunk.blocks = blocks;
byte[] objects = new byte[256];
for (int i = 0; i < 256; i++)
{
objects[i] = (byte)i;
}
chunk.objects = objects;
//Tag Entities = new Tag(TagID.List, "Entities", chunk.entities, TagID.Compound);
//writeTag(Entities, fileStream);
//Tag Rooms = new Tag(TagID.List, "Rooms", chunk.rooms, TagID.Compound);
//writeTag(Rooms, fileStream);
//Tag TileEntities = new Tag(TagID.List, "TileEntities", chunk.tileEntities, TagID.Compound);
//writeTag(TileEntities, fileStream);
return chunk;
}
public static Chunk getChunk(byte[] chunkData)
{
int position = 0;
int length = chunkData.Length;
int layerDepth = 0;
Chunk newChunk = new Chunk();
while (position < length)
{
Tag tempTag = readTag(chunkData, ref position);
configureChunk(newChunk, tempTag, ref layerDepth);
}
return newChunk;
}
/*
public static Chunk getUnloadedChunk(byte[] chunkData)
{
int chunkXPos = 0;
int chunkYPos = 0;
bool chunkIdentified = false;
bool chunkChecked = false;
bool chunkAlreadyLoaded = false;
int layerDepth = 1;
Tag regionTag = readTag(regionFile.fileStream); //should be compound
while (layerDepth > 0)
{
Tag currentTag = readTag(regionFile.fileStream);
String tagName = currentTag.getName();
TagID tagID = currentTag.getID();
if (chunkIdentified & !chunkChecked)
{
int localxPos;
int localyPos;
if (chunkXPos >= 0)
{
localxPos = chunkXPos % 4;
}
else
{
localxPos = 3 + (chunkXPos + 1) % 4;
}
if (chunkYPos >= 0)
{
localyPos = chunkYPos % 4;
}
else
{
localyPos = 3 + (chunkYPos + 1) % 4;
}
bool isThisChunkLoaded = regionFile.chunksLoaded[localxPos + localyPos * 4];
// nummer = xpos % 4 + (ypos % 4) * 4
if (isThisChunkLoaded)
{
chunkAlreadyLoaded = true;
}
else
{
//chunk is not loaded and will be now
newChunk.XPos = chunkXPos;
newChunk.YPos = chunkYPos;
newChunk.innerIndex = (byte)(localxPos + localyPos * 4);
regionFile.chunksLoaded[localxPos + localyPos * 4] = true;
}
chunkChecked = true;
}
if (!chunkAlreadyLoaded)
{
switch (tagID)
{
case TagID.End:
layerDepth--;
if (layerDepth == 1)
{
//end of unloaded chunk
//this means its now added return new chunk
Console.WriteLine("chunk now loaded");
return newChunk;
}
break;
case TagID.Byte:
if (tagName.Equals("TerrainPopulated"))
{
newChunk.terrainPopulated = (sbyte)currentTag.getData();
}
else if (tagName.Equals("StructurePopulated"))
{
newChunk.structurePopulated = (sbyte)currentTag.getData();
}
break;
case TagID.Short:
break;
case TagID.Int:
if (tagName.Equals("XPos"))
{
byte[] data = (byte[])currentTag.getRawData();
int dataInt = BitConverter.ToInt32(data, 0);
chunkXPos = dataInt;
}
else if (tagName.Equals("YPos"))
{
byte[] data = (byte[])currentTag.getRawData();
int dataInt = BitConverter.ToInt32(data, 0);
chunkYPos = dataInt;
chunkIdentified = true;
}
break;
case TagID.Long:
if (tagName.Equals("LastUpdate"))
{
byte[] data = (byte[])currentTag.getRawData();
long dataLong = BitConverter.ToInt64(data, 0);
newChunk.lastUpdate = dataLong;
}
else if (tagName.Equals("InhabitedTime"))
{
byte[] data = (byte[])currentTag.getRawData();
long dataLong = BitConverter.ToInt64(data, 0);
newChunk.inhabitedTime = dataLong;
}
break;
case TagID.Float:
break;
case TagID.Double:
break;
case TagID.ByteArray:
if (tagName.Equals("Biomes"))
{
newChunk.biomes = (byte[])currentTag.getData();
}
else if (tagName.Equals("Blocks"))
{
newChunk.blocks = (byte[])currentTag.getData();
}
else if (tagName.Equals("Objects"))
{
newChunk.objects = (byte[])currentTag.getData();
}
break;
case TagID.String:
break;
case TagID.List:
if (tagName.Equals("Entities"))
{
newChunk.entities = (List<List<Tag>>)currentTag.getData();
}
else if (tagName.Equals("Rooms"))
{
newChunk.rooms = (List<List<Tag>>)currentTag.getData();
}
break;
case TagID.Compound:
layerDepth++;
break;
case TagID.IntArray:
break;
default:
layerDepth = 0;
break;
}
}
else
{
switch (tagID)
{
case TagID.End:
layerDepth--;
if (layerDepth == 1)
{
//end of already loaded chunk
chunkAlreadyLoaded = false;
chunkIdentified = false;
chunkChecked = false;
}
break;
case TagID.Compound:
layerDepth++;
break;
default:
break;
}
}
//}
}
return null;
}
*/
public static byte[] saveChunk(Chunk chunk)
{
int position = 0;
int bufferSize = 4096;
byte[] buffer = new byte[bufferSize];
List<Tag> chunkTagList = new List<Tag>();
byte[] chunkXpos = BitConverter.GetBytes(chunk.xCoordinate);
Tag XPos = new Tag(TagID.Int, "XPos", chunkXpos);
chunkTagList.Add(XPos);
byte[] chunkYpos = BitConverter.GetBytes(chunk.yCoordinate);
Tag YPos = new Tag(TagID.Int, "YPos", chunkYpos);
chunkTagList.Add(YPos);
byte[] chunkLastUpdate = BitConverter.GetBytes(chunk.lastUpdate);
Tag LastUpdate = new Tag(TagID.Long, "LastUpdate", chunkLastUpdate);
chunkTagList.Add(LastUpdate);
byte terrainByte = (byte)chunk.terrainPopulated;
byte[] chunkTerrainPopulated = { terrainByte };
Tag TerrainPopulated = new Tag(TagID.Byte, "TerrainPopulated", chunkTerrainPopulated);
chunkTagList.Add(TerrainPopulated);
byte structureByte = chunk.structurePopulated;
byte[] chunkStructurePopulated = { structureByte };
Tag StructurePopulated = new Tag(TagID.Byte, "StructurePopulated", chunkStructurePopulated);
chunkTagList.Add(StructurePopulated);
byte[] chunkInhabitedTime = BitConverter.GetBytes(chunk.inhabitedTime);
Tag InhabitedTime = new Tag(TagID.Long, "InhabitedTime", chunkInhabitedTime);
chunkTagList.Add(InhabitedTime);
Tag Biomes = new Tag(TagID.ByteArray, "Biomes", chunk.biomes);
chunkTagList.Add(Biomes);
Tag Blocks = new Tag(TagID.ByteArray, "Blocks", chunk.blocks);
chunkTagList.Add(Blocks);
Tag Objects = new Tag(TagID.ByteArray, "Objects", chunk.objects);
chunkTagList.Add(Objects);
//Tag Entities = new Tag(TagID.List, "Entities", chunk.entities, TagID.Compound);
//writeTag(Entities, fileStream);
//Tag Rooms = new Tag(TagID.List, "Rooms", chunk.rooms, TagID.Compound);
//writeTag(Rooms, fileStream);
//Tag TileEntities = new Tag(TagID.List, "TileEntities", chunk.tileEntities, TagID.Compound);
//writeTag(TileEntities, fileStream);
//Tag End = new Tag(TagID.End, null, null);
Tag chunkTag = new Tag(TagID.Compound, "chunk", chunkTagList, TagID.Compound);
writeTag(chunkTag, ref buffer, ref position);
writeTag(XPos, ref buffer, ref position);
writeTag(YPos, ref buffer, ref position);
writeTag(LastUpdate, ref buffer, ref position);
writeTag(TerrainPopulated, ref buffer, ref position);
writeTag(StructurePopulated, ref buffer, ref position);
writeTag(InhabitedTime, ref buffer, ref position);
writeTag(Biomes, ref buffer, ref position);
writeTag(Blocks, ref buffer, ref position);
writeTag(Objects, ref buffer, ref position);
//writeTag(End, ref buffer, ref position);
byte[] trimmedBuffer = new byte[position];
Array.Copy(buffer, 0, trimmedBuffer, 0, position);
return trimmedBuffer;
}
public static void configureChunk(Chunk chunk, Tag tag, ref int layerDepth)
{
TagID tagID = tag.getID();
String tagName = tag.getName();
switch (tagID)
{
case TagID.End:
layerDepth--;
break;
case TagID.Byte:
if (tagName.Equals("TerrainPopulated"))
{
chunk.terrainPopulated = tag.getByte();
}
else if (tagName.Equals("StructurePopulated"))
{
chunk.structurePopulated = tag.getByte();
}
break;
case TagID.Short:
break;
case TagID.Int:
if (tagName.Equals("XPos"))
{
chunk.xCoordinate = tag.getInt();
}
else if (tagName.Equals("YPos"))
{
chunk.yCoordinate = tag.getInt();
}
break;
case TagID.Long:
if (tagName.Equals("LastUpdate"))
{
chunk.lastUpdate = tag.getLong();
}
else if (tagName.Equals("InhabitedTime"))
{
chunk.inhabitedTime = tag.getLong();
}
break;
case TagID.Float:
break;
case TagID.Double:
break;
case TagID.ByteArray:
if (tagName.Equals("Biomes"))
{
chunk.biomes = tag.getPayload();
}
else if (tagName.Equals("Blocks"))
{
chunk.blocks = tag.getPayload();
}
else if (tagName.Equals("Objects"))
{
chunk.objects = tag.getPayload();
}
break;
case TagID.String:
break;
case TagID.List:
if (tagName.Equals("Entities"))
{
//chunk.entities = (List<List<Tag>>)currentTag.getData();
}
else if (tagName.Equals("Rooms"))
{
//newChunk.rooms = (List<List<Tag>>)currentTag.getData();
}
break;
case TagID.Compound:
layerDepth++;
break;
case TagID.IntArray:
break;
default:
layerDepth = 0;
break;
}
}
public void writeChunk(Chunk chunkToWrite)
{
Point chunkID = new Point(chunkToWrite.xCoordinate, chunkToWrite.yCoordinate);
Point checkingRegionID = Translation.chunkCoordsToRegionCoords(chunkID);
lastUsedTick = DateTime.Now.Ticks;
//Makes sure the chunk is inside this specific region
if (regionID.X == checkingRegionID.X && regionID.Y == checkingRegionID.Y)
{
Point internalChunkPos = Translation.chunkCoordsToInternalRegionChunkCoords(chunkID);
int chunkIDInArrays = internalChunkPos.X + internalChunkPos.Y * 32;
byte[] chunkData = TagTranslator.saveChunk(chunkToWrite);
int chunkSizeInBytesInt = chunkData.Length;
if (chunkSizeInBytesInt < 4096)
{
//update regionScheme
int chunkPositionInFileInt = (1024 + (4096 * 2)) + (chunkIDInArrays * 4096);
chunkPositionInFile[chunkIDInArrays] = chunkPositionInFileInt;
chunkSizeInBytes[chunkIDInArrays] = chunkSizeInBytesInt;
chunkIsPresent[chunkIDInArrays] = 1;
//write to filestream
pushByteArray(chunkData, chunkPositionInFileInt, chunkSizeInBytesInt);
}
else
{
throw new System.Exception("Chunk size too big. (Equal to or above 1024 bytes)");
}
}
else
{
throw new System.Exception("Trying to save a chunk in wrong region file.");
}
}